North Korea announced Saturday that it had suspended nuclear and longer-range missile tests and shut down its main nuclear test site as the sanctions-hit country seeks to shift its focus to shoring up its moribund economy, state media said, less than a week before a key inter-Korean summit.

Leader Kim Jong Un called the completion of its nuclear weapons program a ¡°great victory,¡± and said that ¡°no nuclear test and intermediate-range and inter-continental ballistic rocket test-fire are necessary for the DPRK now.¡±

¡°The mission of the northern nuclear test ground has thus come to an end,¡± he added at a gathering of the Central Committee of the ruling Workers¡¯ Party, according to the official Korean Central News Agency.